Date:	Sun, 27 Jul 2014 02:01:42 -0700
From:	Vinson Lee <vlee@...pensource.com>
To:	"Rafael J. Wysocki" <rjw@...ysocki.net>
Cc:	Zdenek Kabelac <zkabelac@...hat.com>,
	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
	LKML <linux-kernel@...r.kernel.org>,
	ACPI Devel Maling List <linux-acpi@...r.kernel.org>
Subject: Re: WARNING: CPU: 0 PID: 2623 at drivers/pnp/pnpacpi/core.c:96 pnpacpi_set_resource

On Fri, Jul 25, 2014 at 4:15 PM, Vinson Lee <vlee@...pensource.com> wrote:
> On Thu, May 29, 2014 at 4:14 AM, Rafael J. Wysocki <rjw@...ysocki.net> wrote:
>> On Thursday, May 29, 2014 10:41:43 AM Zdenek Kabelac wrote:
>>> Hi
>>>
>>>
>>> I've noticed this message in my dmesg:
>>> (Possibly related to this commit?:
>>> a8d22396302b7e4e5f0a594c1c1594388c29edaf)
>>
>> Well, does reverting that commit make the warning go away?
>>
>> Rafael
>>
>>
>>> (My vanilla git commit number for my kernel:
>>> cd79bde29f00a346eec3fe17c1c5073c37ed95e7)
>>>
>>> Zdenek
>>>
>>>
>>> [ 2174.058615] ata5: port disabled--ignoring
>>> [ 2174.059460] sd 0:0:0:0: [sda] Starting disk
>>> [ 2174.076342] ------------[ cut here ]------------
>>> [ 2174.076350] WARNING: CPU: 0 PID: 2623 at drivers/pnp/pnpacpi/core.c:96
>>> pnpacpi_set_resources+0x14f/0x160()
>>> [ 2174.076412] Modules linked in: dm_raid raid456 async_raid6_recov
>>> async_memcpy async_pq async_xor async_tx raid1 raid10 dm_mod md_mod xor
>>> raid6_pq i915 i2c_algo_bit drm_kms_helper drm xt_CHECKSUM iptable_mangle
>>> ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4
>>> xt_conntrack nf_conntrack ipt_REJECT xt_tcpudp iptable_filter ip_tables
>>> x_tables tun bridge stp llc ipv6 hid_generic usbhid hid snd_hda_codec_analog
>>> snd_hda_codec_generic iTCO_wdt iTCO_vendor_support coretemp kvm_intel kvm
>>> microcode psmouse serio_raw i2c_i801 i2c_core arc4 lpc_ich mfd_core r852
>>> iwl3945 sm_common nand r592 nand_ecc nand_ids iwlegacy mtd memstick mac80211
>>> sdhci_pci pcmcia sdhci snd_hda_intel mmc_core snd_hda_controller snd_hda_codec
>>> snd_hwdep snd_seq snd_seq_device snd_pcm cfg80211 e1000e ptp snd_timer
>>> [ 2174.076433]  pps_core wmi thinkpad_acpi nvram snd soundcore evdev nfsd
>>> auth_rpcgss oid_registry nfs_acl lockd binfmt_misc loop sunrpc uhci_hcd sr_mod
>>> cdrom yenta_socket ehci_pci ehci_hcd usbcore usb_common video backlight autofs4
>>> [ 2174.076436] CPU: 0 PID: 2623 Comm: systemd-sleep Not tainted
>>> 3.15.0-rc7-00044-g887210a #209
>>> [ 2174.076437] Hardware name: LENOVO 6464CTO/6464CTO, BIOS 7LETC9WW (2.29 )
>>> 03/18/2011
>>> [ 2174.076440]  0000000000000009 ffff880095d55c40 ffffffff815db694
>>> 0000000000000000
>>> [ 2174.076444]  ffff880095d55c78 ffffffff8104e78d 0000000000000000
>>> ffff880136c3cd98
>>> [ 2174.076447]  ffff8800bac2b000 ffffffff8180cb5a 0000000000000000
>>> ffff880095d55c88
>>> [ 2174.076448] Call Trace:
>>> [ 2174.076453]  [<ffffffff815db694>] dump_stack+0x4e/0x7a
>>> [ 2174.076643]  [<ffffffff8104e78d>] warn_slowpath_common+0x7d/0xa0
>>> [ 2174.076646]  [<ffffffff8104e86a>] warn_slowpath_null+0x1a/0x20
>>> [ 2174.076648]  [<ffffffff814046cf>] pnpacpi_set_resources+0x14f/0x160
>>> [ 2174.076651]  [<ffffffff81401db2>] pnp_start_dev+0x42/0x80
>>> [ 2174.076655]  [<ffffffff81400858>] pnp_bus_resume+0x88/0xa0
>>> [ 2174.076658]  [<ffffffff814007d0>] ? pnp_bus_suspend+0x20/0x20
>>> [ 2174.076662]  [<ffffffff8145e919>] dpm_run_callback+0x49/0xa0
>>> [ 2174.076664]  [<ffffffff8145ec18>] device_resume+0xc8/0x1f0
>>> [ 2174.076667]  [<ffffffff81460639>] dpm_resume+0x119/0x250
>>> [ 2174.076670]  [<ffffffff814609b1>] dpm_resume_end+0x11/0x20
>>> [ 2174.076673]  [<ffffffff810b4b0f>] suspend_devices_and_enter+0xff/0x680
>>> [ 2174.076676]  [<ffffffff810b5277>] pm_suspend+0x1e7/0x2a0
>>> [ 2174.076678]  [<ffffffff810b3c2c>] state_store+0x7c/0xf0
>>> [ 2174.076683]  [<ffffffff81359f2f>] kobj_attr_store+0xf/0x20
>>> [ 2174.076686]  [<ffffffff8124b1b5>] sysfs_kf_write+0x45/0x60
>>> [ 2174.076690]  [<ffffffff8124a4d9>] kernfs_fop_write+0xf9/0x180
>>> [ 2174.076694]  [<ffffffff811c66bd>] vfs_write+0xbd/0x1e0
>>> [ 2174.076696]  [<ffffffff811c7249>] SyS_write+0x49/0xb0
>>> [ 2174.076700]  [<ffffffff815ecbd6>] system_call_fastpath+0x1a/0x1f
>>> [ 2174.081587] ---[ end trace 32ffe1e61f685f01 ]---
>>> [ 2174.082221] serial 00:09: activated
>>> [ 2174.233290] thinkpad_acpi: ACPI backlight control delay disabled
>>> [ 2174.323685] ata4.00: ACPI cmd ef/03:42:00:00:00:a0 (SET FEATURES) filtered out
>>> [ 2174.323688] ata4.00: ACPI cmd ef/03:0c:00:00:00:a0 (SET FEATURES) filtered out
>>> [ 2174.324671] ata4.00: ACPI cmd e3/00:79:00:00:00:a0 (IDLE) succeeded
>>> [ 2174.325651] ata4.00: ACPI cmd e3/00:01:00:00:00:a0 (IDLE) succeeded
>>> [ 2174.345266] ata4.00: configured for UDMA/33
>>> --
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>>> Please read the FAQ at  http://www.tux.org/lkml/
>>
>> --
>> I speak only for myself.
>> Rafael J. Wysocki, Intel Open Source Technology Center.
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
>> the body of a message to majordomo@...r.kernel.org
>> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>> Please read the FAQ at  http://www.tux.org/lkml/
>
>
> Hi.
>
> I hit a similar stack trace with 3.14.8.
>
> ------------[ cut here ]------------
>  WARNING: CPU: 23 PID: 1 at drivers/pnp/pnpacpi/core.c:96
> pnpacpi_set_resources+0x9a/0x134()
>  Modules linked in:
>  CPU: 23 PID: 1 Comm: swapper/0 Not tainted 3.14.8 #1
>   0000000000000000 ffff881fd29f5c78 ffffffff814e27e5 0000000000000000
>   ffff881fd29f5cb0 ffffffff8105c4b1 ffffffff812f32f3 0000000000000000
>   ffff883fd1f0a800 ffff881fff047348 0000000000000000 ffff881fd29f5cc0
>  Call Trace:
>   [<ffffffff814e27e5>] dump_stack+0x45/0x56
>   [<ffffffff8105c4b1>] warn_slowpath_common+0x7f/0x98
>   [<ffffffff812f32f3>] ? pnpacpi_set_resources+0x9a/0x134
>   [<ffffffff8105c578>] warn_slowpath_null+0x1a/0x1c
>   [<ffffffff812f32f3>] pnpacpi_set_resources+0x9a/0x134
>   [<ffffffff812f1264>] pnp_start_dev+0x3d/0x76
>   [<ffffffff812f189d>] pnp_activate_dev+0x29/0x44
>   [<ffffffff812f0406>] pnp_device_probe+0x47/0xa6
>   [<ffffffff81333e20>] driver_probe_device+0x120/0x2f2
>   [<ffffffff8133408c>] __driver_attach+0x5d/0x7f
>   [<ffffffff8133402f>] ? __device_attach+0x3d/0x3d
>   [<ffffffff81332248>] bus_for_each_dev+0x7b/0x85
>   [<ffffffff81333852>] driver_attach+0x1e/0x20
>   [<ffffffff813334a6>] bus_add_driver+0x12f/0x1f9
>   [<ffffffff81334614>] driver_register+0x8e/0xca
>   [<ffffffff812f0299>] pnp_register_driver+0x21/0x23
>   [<ffffffff813169b6>] serial8250_pnp_init+0x15/0x17
>   [<ffffffff81b39d3c>] serial8250_init+0x60/0x143
>   [<ffffffff81b39cdc>] ? serial8250_console_init+0x19/0x19
>   [<ffffffff810002d2>] do_one_initcall+0xa4/0x12a
>   [<ffffffff810758b1>] ? parse_args+0x258/0x331
>   [<ffffffff81afcea2>] kernel_init_freeable+0x16f/0x1f4
>   [<ffffffff81afc719>] ? do_early_param+0x88/0x88
>   [<ffffffff814d47b5>] ? rest_init+0x79/0x79
>   [<ffffffff814d47c3>] kernel_init+0xe/0xdf
>   [<ffffffff814ee0ec>] ret_from_fork+0x7c/0xb0
>   [<ffffffff814d47b5>] ? rest_init+0x79/0x79
>  ---[ end trace 9cf08771a70bd5a1 ]—
>
>
> Cheers,
> Vinson

Hi.

Reverting "PNP / ACPI: Do not return errors if _DIS or _SRS are not
present" does not make the warning go away.

The warning also occurs with kernel 3.16-rc6.

------------[ cut here ]------------
 WARNING: CPU: 23 PID: 1 at drivers/pnp/pnpacpi/core.c:76
pnpacpi_set_resources+0x9a/0x134()
 Modules linked in:
 CPU: 23 PID: 1 Comm: swapper/0 Not tainted 3.16.0-rc6 #1
  0000000000000000 ffff8808541efc78 ffffffff814facfd 0000000000000000
  ffff8808541efcb0 ffffffff8105f229 ffffffff81302487 0000000000000000
  ffff8810530e8000 ffff88085f450e60 0000000000000000 ffff8808541efcc0
 Call Trace:
  [<ffffffff814facfd>] dump_stack+0x45/0x56
  [<ffffffff8105f229>] warn_slowpath_common+0x7f/0x98
  [<ffffffff81302487>] ? pnpacpi_set_resources+0x9a/0x134
  [<ffffffff8105f2f0>] warn_slowpath_null+0x1a/0x1c
  [<ffffffff81302487>] pnpacpi_set_resources+0x9a/0x134
  [<ffffffff8130029c>] pnp_start_dev+0x3d/0x76
  [<ffffffff813008d5>] pnp_activate_dev+0x29/0x44
  [<ffffffff812ff43e>] pnp_device_probe+0x47/0xa6
  [<ffffffff81342e1f>] driver_probe_device+0x120/0x2f3
  [<ffffffff8134308c>] __driver_attach+0x5d/0x7f
  [<ffffffff8134302f>] ? __device_attach+0x3d/0x3d
  [<ffffffff813412a0>] bus_for_each_dev+0x7b/0x85
  [<ffffffff81342886>] driver_attach+0x1e/0x20
  [<ffffffff813424fe>] bus_add_driver+0x12f/0x1f9
  [<ffffffff81343694>] driver_register+0x8e/0xca
  [<ffffffff812ff2d1>] pnp_register_driver+0x21/0x23
  [<ffffffff81325c2d>] serial8250_pnp_init+0x15/0x17
  [<ffffffff81b456a1>] serial8250_init+0x60/0x143
  [<ffffffff81b45641>] ? serial8250_console_init+0x19/0x19
  [<ffffffff8100032d>] do_one_initcall+0xff/0x186
  [<ffffffff81077ee1>] ? parse_args+0x280/0x373
  [<ffffffff81b07fb0>] kernel_init_freeable+0x16f/0x1f4
  [<ffffffff81b07719>] ? do_early_param+0x88/0x88
  [<ffffffff814efa15>] ? rest_init+0x79/0x79
  [<ffffffff814efa23>] kernel_init+0xe/0xdf
  [<ffffffff815002ec>] ret_from_fork+0x7c/0xb0
  [<ffffffff814efa15>] ? rest_init+0x79/0x79
 ---[ end trace 68542c0606786a42 ]---

Vinson
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